JP2020503543A - Ghost image removal of DOE using Fourier optical method - Google Patents
Ghost image removal of DOE using Fourier optical method Download PDFInfo
- Publication number
- JP2020503543A JP2020503543A JP2019531905A JP2019531905A JP2020503543A JP 2020503543 A JP2020503543 A JP 2020503543A JP 2019531905 A JP2019531905 A JP 2019531905A JP 2019531905 A JP2019531905 A JP 2019531905A JP 2020503543 A JP2020503543 A JP 2020503543A
- Authority
- JP
- Japan
- Prior art keywords
- doe
- display system
- see
- display
- fourier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims description 23
- 238000000034 method Methods 0.000 title abstract description 10
- 230000010363 phase shift Effects 0.000 claims description 14
- 238000001228 spectrum Methods 0.000 claims 8
- 238000013139 quantization Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 abstract description 6
- 238000012546 transfer Methods 0.000 description 11
- 238000013461 design Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 230000004075 alteration Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000017284 Pometia pinnata Nutrition 0.000 description 1
- 240000007653 Pometia tomentosa Species 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/48—Laser speckle optics
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
- G02B2027/0174—Head mounted characterised by optical features holographic
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
Abstract
DOEを有するシースルー画像表示システムは、DOE表面の鋸歯形状の量子化のために、望ましくない光またはいわゆるゴースト画像を有することが多い。本発明はゴースト像を除去する方法を提供する。【選択図】図11See-through image display systems with DOE often have undesirable light or so-called ghost images due to the quantization of the sawtooth shape of the DOE surface. The present invention provides a method for removing a ghost image. [Selection diagram] FIG.
Description
[関連する出願]
本出願は、2016年12月15日に出願され米国仮特許出願第62/498,144号の優先日を主張する非仮出願である。本出願及び米国仮特許出願第62/498,140は、2013年6月27日に出願された米国仮特許出願第61/957,258の非仮出願で2014年6月27日に出願された特許出願PCT/US2014/000153の一部継続出願(CIP)である。
[Related application]
This application is a non-provisional application filed December 15, 2016, claiming priority date of US Provisional Patent Application No. 62 / 498,144. This application and U.S. Provisional Patent Application No. 62 / 498,140 were filed on June 27, 2014 as a non-provisional application of U.S. Provisional Patent Application No. 61 / 957,258 filed on June 27, 2013. It is a continuation-in-part (CIP) of patent application PCT / US2014 / 000153.
本発明は、高解像度で広い視野を有するシースルーディスプレイを可能にする回折光学素子に画像を投影するためのディスプレイシステムに関する。より具体的には、本発明は、非常に小さいフォームファクタを有するウェアラブルディスプレイに適したディスプレイに関する。 The present invention relates to a display system for projecting an image on a diffractive optical element enabling a see-through display with a high resolution and a wide field of view. More specifically, the present invention relates to displays suitable for wearable displays having a very small form factor.
スマートフォンが市場で広く受け入れられてから、ウェアラブルディスプレイが近年注目を集めている。ウェアラブルディスプレイは、通常の視界と同じ距離で画像を表示するだけでなく、ハンズフリー操作を提供する。ウェアラブルディスプレイには大きなニーズがある。しかし、これまでは、ヘッドマウントディスプレイ、ヘッドアップディスプレイ、眼鏡型ディスプレイなどのニアアイディスプレイは、しばしば重すぎる、大きすぎる、暗すぎる、低解像度、透過性が悪く、高価で、小さいサイズの画像しか見えなかったため、必ずしも視聴者を満足させるものではなかった。明るく、小さく、明るく、高解像度で、透過性が良く、ステルスで、安価で、大きなサイズの画像が必要とされている。本発明は、これらの必要性の全てを満たす新しい表示システムを提供する。 Since smartphones have gained wide acceptance in the market, wearable displays have attracted attention in recent years. Wearable displays not only display images at the same distance as normal field of view, but also provide hands-free operation. There is a great need for wearable displays. However, until now, near-eye displays, such as head-mounted displays, heads-up displays, and eyeglass displays, are often too heavy, too large, too dark, have low resolution, poor transparency, are expensive, and have only small-sized images. Because it was not visible, it did not always satisfy the audience. There is a need for bright, small, bright, high-resolution, well-transmitted, stealth, inexpensive, and large-sized images. The present invention provides a new display system that meets all of these needs.
図1及び図1Aに示すように、Kasaiらは、米国特許第7460286号明細書(特許文献1)において、ホログラフィック光学素子を用いてシースルー機能を実現する眼鏡型ディスプレイシステムを開示している。この表示システムは、表示装置から法線方向、より具体的にはLCDディスプレイの表面に対して垂直方向に画像を投影し、画像を含む投影光は光導波路に導かれ、観察者の眼に向かって反射される。導波路のため、視野と解像度は非常に限られている。 As shown in FIGS. 1 and 1A, Kasai et al. In U.S. Pat. No. 7,460,286 discloses a spectacle-type display system that realizes a see-through function using holographic optical elements. The display system projects an image from the display device in a normal direction, more specifically, a direction perpendicular to the surface of the LCD display, and the projection light containing the image is guided to an optical waveguide and directed toward an observer's eyes. Reflected. Due to the waveguide, the field of view and the resolution are very limited.
図2と図2Aに示すように、Mukawaらは、SID 2008 DigestのISSN/008−0966X/08/3901−0089”A Full Color Eyewear Display using Holographic Planar Waveguides”(非特許文献1)において、2枚のホログラフィック光学素子のプレートを通してシースルー機能を実現するメガネタイプのディスプレイシステムを開示している。このシステムはまた、解像度および視野を制限する導波路を使用する。 As shown in FIGS. 2 and 2A, Mukakawa et al., In SID 2008 Digest, ISSN / 008-0966X / 08 / 3901-0089 "A Full Color Eyewear Display Usage Holographic Planar Waveguides, Non-Patent Documents, 2 Non-Patent Documents". Discloses a glasses-type display system that realizes a see-through function through a plate of a holographic optical element. This system also uses waveguides that limit resolution and field of view.
図3に示すように、Levolaは、SID 2006 Digest,ISSN0006−64・SID06DIGEST0966X/06/3701−0064,”Novel Diffractive Optical Components for Near to Eye Displays”(非特許文献2)において、LCD装置を2つの眼の中央に配置する別の実施態様を開示している。しかし、それはフォームファクタを拡大する大きな突出スペースを必要とする。上記3種類のディスプレイは、ホログラフィック光学素子(HOE)または回折光学素子(DOE)のいずれかを使用しており、これらの全ては、大きな色収差、色のクロストーク、大きな像面湾曲収差および歪曲収差のいくつかの基本的な困難を有する。Mukawaらは、複数導波路を用いて色のクロストークを低減する方法を説明したが、これはシステムをより重く、より厚くし、光の利用効率を低下させる。Kasaiらは、他の収差は残っておりFOB(視野)はこれらの収差が目立たないように小さくなければならないが、光利用の効率を改善するための単一のHOEを使用した。本発明はこれらの問題がどのように除去されるかを示す。 As shown in FIG. 3, Levola discloses SID 2006 Digest, ISSN0006-64 and SID06DIGEST0966X / 06 / 3701-0064, "Novel Differential Optical Components for Near-to-LCD" and "Non-Patent Document 2 for Non-Patent Documents". Another embodiment is disclosed for placement in the center of the eye. However, it requires a large projecting space which increases the form factor. The above three types of displays use either holographic optical elements (HOE) or diffractive optical elements (DOE), all of which have large chromatic aberration, color crosstalk, large field curvature aberration and distortion. Having some basic difficulties of aberrations. Describe how to reduce color crosstalk using multiple waveguides, which makes the system heavier and thicker and reduces light utilization efficiency. Used a single HOE to improve the efficiency of light utilization, while other aberrations remained and the FOB (field of view) had to be small so that these aberrations were not noticeable. The present invention shows how these problems are eliminated.
図4および図4Aに示すように、Liらは、米国特許第7369317号明細書(特許文献2)に、眼鏡に取り付け可能な小型ディスプレイおよびカメラモジュールを開示した。これはまた、厚いPBS(偏光ビームスプリッタ)を必要とし、FOB(視野)はかなり小さく、これはステルスではなく、ディスプレイの存在は非常に明白である。 As shown in FIGS. 4 and 4A, Li et al. In U.S. Pat. No. 7,369,317 (Patent Document 2) disclosed a small display and a camera module that can be attached to eyeglasses. This also requires a thick PBS (polarizing beam splitter), the FOB (field of view) is quite small, this is not stealth and the presence of the display is very obvious.
図1および図2のような例は、ホログラムおよび導波管を使用してシースルー画像を備えたウェアラブルディスプレイが可能であることを公に実証することに成功した。しかしながら、正確なホログラムを作成することは、光ビームの正確な位置合わせおよび厳しい精度での光学素子の設定を必要とする容易な作業ではなく、同じ結果を一貫して繰り返すことは容易ではない。一方、デジタルパターニング技術において非常に再現性のある方法で半導体ツールによって製造することができるDOE(回折光学素子)を利用する新しい方法が普及している。回折光学素子のパターンをデジタル化することは、量子化の周波数とDOEの周波数が必ずしも同じではなく、その差が「ゴースト像」を作り出すので、不要なゴースト像を作り出すことが多い。本発明は、DOEからもたらされる「ゴーストイメージ」を排除するためのいくつかの方法を示す。 Examples such as FIGS. 1 and 2 have successfully demonstrated that a wearable display with see-through images is possible using holograms and waveguides. However, creating an accurate hologram is not an easy task that requires accurate alignment of the light beam and setting of the optical element with strict accuracy, and it is not easy to consistently repeat the same result. On the other hand, in digital patterning technology, new methods utilizing DOEs (Diffractive Optical Elements), which can be manufactured by semiconductor tools in a very reproducible manner, have become widespread. Digitizing the pattern of the diffractive optical element often produces an unnecessary ghost image because the quantization frequency and the DOE frequency are not always the same, and the difference creates a “ghost image”. The present invention shows several ways to eliminate "ghost images" resulting from DOE.
本発明の目的は、意図された画像および見えない他の高次ピークを除いてフーリエ伝達関数がゼロに近いDOEを使用してシースルーディスプレイを作成することである。 It is an object of the present invention to create a see-through display using a DOE whose Fourier transfer function is close to zero except for the intended image and other higher order peaks that are not visible.
図11は、本発明の実施形態の一例を示す図である。焦点の合った画像を作成するには、反射光が正しい位置に集束するように、Code−VやZemaxなどの光学設計ツールを使用して位相シフト関数を設計する必要がある。次に、2*piごとに関数をスライスすると、鋸波としての関数、スライスされた位相シフト関数を生成する。特定のツールで正確な形状を作ることは可能であるが、それは典型的な半導体製造工場には一般的ではない非常に特殊なツールを必要とする。この場合、一般的な半導体製造工場が一般的なツールで処理できるように、量子化方法がしばしば使用さる。しかしながら、この量子化は観察者の視野角内に不必要なフーリエピークを生成する。次に、位相シフト関数は、フーリエ伝達関数がほぼゼロになるように、ランダム化された位相加算または位相シフト関数を歪ませることを含む特定の方法で負の位相を加えることによって修正されなければならない。 FIG. 11 is a diagram illustrating an example of the embodiment of the present invention. In order to create a focused image, it is necessary to design a phase shift function using an optical design tool such as Code-V or Zemax so that the reflected light is focused on a correct position. Next, when the function is sliced every 2 * pi, a function as a sawtooth wave and a sliced phase shift function are generated. While it is possible to create precise shapes with a particular tool, it requires very specialized tools that are not common in typical semiconductor manufacturing plants. In this case, a quantization method is often used so that a general semiconductor manufacturing plant can process with a general tool. However, this quantization creates unwanted Fourier peaks within the viewing angle of the observer. Next, the phase shift function must be modified by adding a negative phase in a particular way, including randomized phase addition or distorting the phase shift function, such that the Fourier transfer function is near zero. No.
本発明の目的は、視野像から外れている意図された画像および他の高次ピークを除いてフーリエ伝達関数がゼロに近いDOEを使用してシースルーディスプレイを作成することである。 It is an object of the present invention to create a see-through display using a DOE whose Fourier transfer function is close to zero except for the intended image and other higher order peaks that are out of view.
図11は、本発明の実施形態の一例を示す図である。焦点の合った画像を作成するには、反射光が正しい位置に集束するように、Code−VやZemaxなどの光学設計ツールを使用して位相シフト関数を設計する必要がある。次に、2*piごとに関数をスライスすると、鋸波としての関数、スライスされた位相シフト関数を生成する。特定のツールで正確な形状を作ることは可能であるが、それは典型的な半導体製造工場には一般的ではない非常に特殊なツールを必要とする。この場合、一般的な半導体製造工場が一般的なツールで処理できるように、量子化方法がしばしば使用される。しかしながら、この量子化は、図16(計算されたフーリエ変換)および図17(実際の実験結果)に示される例のように、観察者の視野角内に不要なフーリエピークを生成する。次に、位相シフト関数はフーリエ伝達関数がほぼゼロになるように、ランダム化された位相加算を一定ある方法で負の位相を加算するか、または位相シフト関数を修正することによって修正しなければならない。 FIG. 11 is a diagram illustrating an example of the embodiment of the present invention. In order to create a focused image, it is necessary to design a phase shift function using an optical design tool such as Code-V or Zemax so that the reflected light is focused on a correct position. Next, when the function is sliced every 2 * pi, a function as a sawtooth wave and a sliced phase shift function are generated. While it is possible to create precise shapes with a particular tool, it requires very specialized tools that are not common in typical semiconductor manufacturing plants. In this case, a quantization method is often used so that a general semiconductor manufacturing plant can be processed by a general tool. However, this quantization produces unwanted Fourier peaks within the viewing angle of the observer, as in the examples shown in FIG. 16 (calculated Fourier transform) and FIG. 17 (actual experimental results). Next, the phase shift function must modify the randomized phase addition by adding a negative phase in some way or by modifying the phase shift function so that the Fourier transfer function is near zero. No.
負のフーリエ伝達関数の追加は、以下のステップとして行うことができる。
1)DOEに画像を投影するためのレンズとミラーを含む光学系を設計する。
2)図11のステップに従って、量子化位相シフト関数のフーリエ伝達関数を図16のように得る。
2)どのピークが視野角内で望ましくないピークであるかを識別する。
3)望ましくないピークを抽出し、抽出されたピークのフーリエ逆伝達を適用し、この逆伝達関数を元の位相シフト関数に加え、望ましくないピークが消えるまでプロセスを再計算する。
Adding the negative Fourier transfer function can be performed as the following steps.
1) Design an optical system including a lens and a mirror for projecting an image on the DOE.
2) According to the steps in FIG. 11, a Fourier transfer function of the quantized phase shift function is obtained as shown in FIG.
2) Identify which peak is the unwanted peak within the viewing angle.
3) Extract the undesired peaks, apply Fourier inverse transfer of the extracted peaks, add this inverse transfer function to the original phase shift function and recalculate the process until the undesired peaks disappear.
実施形態の別の例は、望ましくないピークがノイズに希釈されるように位相シフト関数をランダム化することである。図14において「p」としてマークされたピッチは、ゴーストピークを排除するためにランダム化することができる。平均値がゼロの正規分布を使用してP’=P+(乱数)を計算する。標準分散は、たとえばPの約10%である。このランダム化は、望ましくないゴースト画像のピークを減らすことになる。 Another example of an embodiment is to randomize the phase shift function so that unwanted peaks are diluted into noise. The pitch marked as “p” in FIG. 14 can be randomized to eliminate ghost peaks. P ′ = P + (random number) is calculated using a normal distribution with an average value of zero. The standard variance is, for example, about 10% of P. This randomization will reduce unwanted ghost image peaks.
他の実施形態は、図18(フーリエ伝達分布)および図19(等高線で示された位相シフト関数)に示されるように元の光学系の設計を修正することである。フーリエ変換(図18)は望ましくないピークをほとんど有さない。 Another embodiment is to modify the original optical system design as shown in FIG. 18 (Fourier transfer distribution) and FIG. 19 (phase shift function shown by contour lines). The Fourier transform (FIG. 18) has few undesirable peaks.
本発明を特定の好ましい実施形態および代替実施形態に関して説明してきたが、本出願を読めば当業者には多くの追加の変形形態および修正形態が明らかになるであろう。したがって、添付の特許請求の範囲は、そのようなすべての変形形態および修正形態を含むように、先行技術に鑑みてできるだけ広く解釈されることを意図している。 Although the invention has been described with respect to certain preferred and alternative embodiments, many additional variations and modifications will become apparent to those skilled in the art upon reading the present application. It is therefore intended that the appended claims be construed as broadly as possible in view of the prior art to include all such variations and modifications.
Claims (8)
前記ディスプレイデバイスを駆動するための回路と、
レーザー、LEDおよびOLEDから選択された群からの発光装置を有する光源と、
眼鏡レンズおよびテンプルと、
眼鏡に取り付けられる回折光学素子(DOE)を使用するシースルー光学素子と、
を備えるシースルーディスプレイシステムであって、
前記DOEの表面形状のフーリエ変換のスペクトルのピークが意図された画像のピークを除いて視野角内でゼロに近いシースルーディスプレイシステム。 A display device selected from the group of LCD, LCOS, micro mirror, micro shutter, OLED and laser beam scanner;
A circuit for driving the display device;
A light source having a light emitting device from a group selected from a laser, an LED and an OLED;
Eyeglass lenses and temples,
A see-through optical element using a diffractive optical element (DOE) attached to spectacles,
A see-through display system comprising:
A see-through display system in which the peak of the Fourier transform spectrum of the DOE surface shape is close to zero within the viewing angle except for the intended image peak.
フーリエスペクトルの望ましくないピークを減らすために、負のフーリエ変換スペクトルが追加される請求項1に記載のシースルーディスプレイシステム。 At
The see-through display system according to claim 1, wherein a negative Fourier transform spectrum is added to reduce unwanted peaks in the Fourier spectrum.
前記ディスプレイデバイスを駆動するための回路と、
レーザー、LEDおよびOLEDの群から選択された発光装置を有する光源と、
光ビームを集束させるためのDOEと、
を備えるディスプレイシステムであって、
前記DOEの表面形状のフーリエ変換のスペクトルのピークは、意図された画像のピークを除いて視野角内でゼロに近いディスプレイシステム。 A display device selected from the group of LCD, LCOS, micro mirror, micro shutter, OLED and laser beam scanner;
A circuit for driving the display device;
A light source having a light emitting device selected from the group of a laser, an LED and an OLED;
DOE for focusing the light beam;
A display system comprising:
A display system wherein the peak of the Fourier transform spectrum of the DOE surface shape is close to zero within the viewing angle except for the intended image peak.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201662498144P | 2016-12-15 | 2016-12-15 | |
US62/498,144 | 2016-12-15 | ||
PCT/US2017/066858 WO2018112433A1 (en) | 2016-12-15 | 2017-12-15 | Ghost image elimination of doe using fourier optics method |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020503543A true JP2020503543A (en) | 2020-01-30 |
JP7104704B2 JP7104704B2 (en) | 2022-07-21 |
Family
ID=62559825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019531905A Active JP7104704B2 (en) | 2016-12-15 | 2017-12-15 | See-through display system and display system |
Country Status (4)
Country | Link |
---|---|
US (1) | US11209586B2 (en) |
JP (1) | JP7104704B2 (en) |
CN (1) | CN110352376A (en) |
WO (1) | WO2018112433A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111708176B (en) * | 2020-03-19 | 2021-04-30 | 北京理工大学 | Self-adaptive heterogeneous variable resolution ghost imaging method and system |
US11941784B1 (en) * | 2020-04-27 | 2024-03-26 | Canon U.S.A., Inc. | Image processing apparatus, method, and storage medium for spectrally encoded endoscopy ghost noise reducton |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09127321A (en) * | 1994-09-12 | 1997-05-16 | Olympus Optical Co Ltd | Diffraction optical element |
JP2006227503A (en) * | 2005-02-21 | 2006-08-31 | Sumitomo Electric Ind Ltd | Diffractive optical component and design method therefor |
WO2015030127A1 (en) * | 2013-09-02 | 2015-03-05 | 旭硝子株式会社 | Diffraction optical element, projection device, and measurement device |
US20150293357A1 (en) * | 2012-10-18 | 2015-10-15 | Lg Electronics Inc. | Optical device |
JP2015228010A (en) * | 2014-06-03 | 2015-12-17 | 大日本印刷株式会社 | Hologram, light-transmissive reflection plate, screen, and projection system |
JP2016012108A (en) * | 2014-06-30 | 2016-01-21 | セイコーエプソン株式会社 | Image display device |
CN105549150A (en) * | 2016-03-04 | 2016-05-04 | 东南大学 | Holographic waveguide display device |
JP2016161670A (en) * | 2015-02-27 | 2016-09-05 | セイコーエプソン株式会社 | Image display device |
Family Cites Families (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51132848A (en) * | 1975-05-13 | 1976-11-18 | Matsushita Electric Ind Co Ltd | Hologram reproduction system |
US5161027A (en) * | 1986-09-30 | 1992-11-03 | The United States Of America As Represented By The Administrator, National Aeronautics And Space Administration | Large area projection liquid-crystal video display system with inherent grid pattern optically removed |
JP3623250B2 (en) * | 1993-06-23 | 2005-02-23 | オリンパス株式会社 | Video display device |
US5847877A (en) * | 1994-09-12 | 1998-12-08 | Olympus Optical Co., Ltd. | Diffractive optical element |
US5621500A (en) * | 1995-05-25 | 1997-04-15 | Nikon Corporation | Method and apparatus for projection exposure |
JP3144292B2 (en) * | 1996-02-06 | 2001-03-12 | ミノルタ株式会社 | Zoom lens |
JP4149021B2 (en) * | 1998-01-14 | 2008-09-10 | オリンパス株式会社 | Optical system |
JP2004264347A (en) * | 2003-02-06 | 2004-09-24 | Sumitomo Electric Ind Ltd | Diffractive optical element and laser beam machining device using the same |
IL157837A (en) * | 2003-09-10 | 2012-12-31 | Yaakov Amitai | Substrate-guided optical device particularly for three-dimensional displays |
US20060181770A1 (en) * | 2005-02-15 | 2006-08-17 | K Laser Technology, Inc. | Rear projection screen with spatial varying diffusing angle |
US7418202B2 (en) * | 2005-08-04 | 2008-08-26 | 3M Innovative Properties Company | Article having a birefringent surface and microstructured features having a variable pitch or angles for use as a blur filter |
CN101263412A (en) * | 2005-09-14 | 2008-09-10 | 米拉茨创新有限公司 | Diffractive optical device and system |
US8520310B2 (en) * | 2008-09-26 | 2013-08-27 | Konica Minolta Opto, Inc. | Image display device, head-mounted display and head-up display |
US20110194163A1 (en) * | 2008-11-26 | 2011-08-11 | Konica Minolta Opto, Inc. | Image display device and head-mounted display |
WO2010143394A1 (en) * | 2009-06-11 | 2010-12-16 | パナソニック株式会社 | Diffraction optical element |
JP5402293B2 (en) * | 2009-06-22 | 2014-01-29 | ソニー株式会社 | Head-mounted display and image display method in head-mounted display |
US8467133B2 (en) * | 2010-02-28 | 2013-06-18 | Osterhout Group, Inc. | See-through display with an optical assembly including a wedge-shaped illumination system |
US20110213664A1 (en) * | 2010-02-28 | 2011-09-01 | Osterhout Group, Inc. | Local advertising content on an interactive head-mounted eyepiece |
JP5477464B2 (en) * | 2010-04-21 | 2014-04-23 | 富士通株式会社 | Imaging device |
CN101907764A (en) * | 2010-08-03 | 2010-12-08 | 浙江师范大学 | Projection helmet optical system, projection lens thereof and helmet display device employing system |
US8773599B2 (en) * | 2011-10-24 | 2014-07-08 | Google Inc. | Near-to-eye display with diffraction grating that bends and focuses light |
EP2776885A4 (en) * | 2011-11-07 | 2015-07-15 | Elbit Systems America Llc | System and method for projecting synthetic imagery and scenic imagery using an optical component comprising a diffractive optical element pattern |
CN103323947A (en) * | 2012-03-19 | 2013-09-25 | 江苏慧光电子科技有限公司 | Head up display device based on laser holographic projection imaging |
EP2834698B1 (en) * | 2012-05-03 | 2021-06-23 | Nokia Technologies Oy | Image providing apparatus, method and computer program |
FI125270B (en) * | 2012-09-20 | 2015-08-14 | Teknologian Tutkimuskeskus Vtt Oy | Optical device with diffractive grating |
JP6424168B2 (en) * | 2012-12-21 | 2018-11-14 | サムスン エレクトロニクス カンパニー リミテッド | Method and apparatus for transmitting and receiving signals in a communication system |
CN103292690B (en) * | 2013-05-29 | 2016-01-20 | 浙江大学 | A kind of synthetic aperture microscope equipment selected based on light field |
US10533850B2 (en) * | 2013-07-12 | 2020-01-14 | Magic Leap, Inc. | Method and system for inserting recognized object data into a virtual world |
JP6244888B2 (en) * | 2013-09-03 | 2017-12-13 | セイコーエプソン株式会社 | Virtual image display device |
KR102651578B1 (en) * | 2013-11-27 | 2024-03-25 | 매직 립, 인코포레이티드 | Virtual and augmented reality systems and methods |
CN103969628B (en) * | 2014-04-08 | 2017-01-04 | 南京航空航天大学 | A kind of synthetic aperture radar PFA imaging algorithm based on compressed sensing |
CN103913843A (en) * | 2014-04-10 | 2014-07-09 | 中航华东光电(上海)有限公司 | Optical system of off-axis single-reflection-type binocular helmet-mounted display |
JP2016071231A (en) * | 2014-09-30 | 2016-05-09 | セイコーエプソン株式会社 | Image display device |
CN104375271B (en) * | 2014-11-21 | 2017-12-22 | 北京理工大学 | Waveguide augmented reality display methods and system based on complex amplitude modulation |
JP6520209B2 (en) * | 2015-02-27 | 2019-05-29 | セイコーエプソン株式会社 | Image display device |
JP2016176996A (en) * | 2015-03-18 | 2016-10-06 | アルプス電気株式会社 | Image projection device |
CN104808469B (en) * | 2015-04-28 | 2017-09-12 | 中国科学院上海光学精密机械研究所 | High resolution ratio digital holographic microscopic imaging device and imaging method |
CN105629474B (en) * | 2016-03-07 | 2019-02-22 | 成都理想境界科技有限公司 | A kind of near-eye display system and wear display equipment |
CN106093945B (en) * | 2016-08-22 | 2018-04-06 | 西安电子科技大学 | A kind of SAR radar imaging methods for removing orientation ghost image |
-
2017
- 2017-12-15 US US15/843,352 patent/US11209586B2/en active Active
- 2017-12-15 WO PCT/US2017/066858 patent/WO2018112433A1/en active Application Filing
- 2017-12-15 JP JP2019531905A patent/JP7104704B2/en active Active
- 2017-12-15 CN CN201780077911.6A patent/CN110352376A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09127321A (en) * | 1994-09-12 | 1997-05-16 | Olympus Optical Co Ltd | Diffraction optical element |
JP2006227503A (en) * | 2005-02-21 | 2006-08-31 | Sumitomo Electric Ind Ltd | Diffractive optical component and design method therefor |
US20150293357A1 (en) * | 2012-10-18 | 2015-10-15 | Lg Electronics Inc. | Optical device |
WO2015030127A1 (en) * | 2013-09-02 | 2015-03-05 | 旭硝子株式会社 | Diffraction optical element, projection device, and measurement device |
JP2015228010A (en) * | 2014-06-03 | 2015-12-17 | 大日本印刷株式会社 | Hologram, light-transmissive reflection plate, screen, and projection system |
JP2016012108A (en) * | 2014-06-30 | 2016-01-21 | セイコーエプソン株式会社 | Image display device |
JP2016161670A (en) * | 2015-02-27 | 2016-09-05 | セイコーエプソン株式会社 | Image display device |
CN105549150A (en) * | 2016-03-04 | 2016-05-04 | 东南大学 | Holographic waveguide display device |
Also Published As
Publication number | Publication date |
---|---|
JP7104704B2 (en) | 2022-07-21 |
CN110352376A (en) | 2019-10-18 |
WO2018112433A1 (en) | 2018-06-21 |
US20180275333A1 (en) | 2018-09-27 |
US11209586B2 (en) | 2021-12-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8773599B2 (en) | Near-to-eye display with diffraction grating that bends and focuses light | |
CN109870811B (en) | Multi-image display device including diffractive optical lens element | |
KR101169446B1 (en) | Exit pupil expanders with spherical and aspheric substrates | |
Bang et al. | Lenslet VR: thin, flat and wide-FOV virtual reality display using fresnel lens and lenslet array | |
US10877273B2 (en) | Optical window system and see-through type display apparatus including the same | |
Kress et al. | A review of head-mounted displays (HMD) technologies and applications for consumer electronics | |
CN107771297B (en) | Free-form nanostructured surfaces for virtual and augmented reality near-eye displays | |
Sun et al. | Holographic near-eye display system based on double-convergence light Gerchberg-Saxton algorithm | |
RU2579804C1 (en) | Optical device for generating augmented reality images | |
US10539798B2 (en) | Optics of wearable display devices | |
JP7104704B2 (en) | See-through display system and display system | |
US11073694B2 (en) | Optics of wearable display using laser beam scanner | |
JP7053622B2 (en) | See-through display system | |
US11467406B2 (en) | Field of view expanding system | |
US20180196267A1 (en) | Pseudo phase conjugate image transfer device | |
US20210096370A1 (en) | Non-linear angular momentum metasurface | |
Zhang et al. | Retinal projection display system based on MEMS scanning projector and conicoid curved semi-reflective mirror | |
Xu et al. | Effects of image focal depth in geometrical lightguide head mounted displays | |
Liu et al. | Compact monocular 3D near-eye display | |
Seo et al. | Holographic AR Glasses | |
Cakmakci et al. | Design of a compact optical see-through head-worn display with mutual occlusion capability | |
Cho et al. | Multi-focal lens holographic optical element-based waveguide-type display for extended depth of field |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20201105 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20210817 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20210914 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20211209 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220510 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220530 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20220628 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20220708 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7104704 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |